diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2013-10-02 22:35:11 -0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-11-09 00:16:27 -0500 |
commit | 6987843ff7e836ea65b554905aec34d2fad05c94 (patch) | |
tree | b6a66c9d11b96ee6d03eef374e016ed855b25738 /fs/anon_inodes.c | |
parent | 22a8cb8248ba5d340307ba72432253b1dbdb5cf7 (diff) | |
download | linux-6987843ff7e836ea65b554905aec34d2fad05c94.tar.bz2 |
take anon inode allocation to libfs.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/anon_inodes.c')
-rw-r--r-- | fs/anon_inodes.c | 50 |
1 files changed, 2 insertions, 48 deletions
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index 85c961849953..22f9698a1214 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -24,7 +24,6 @@ static struct vfsmount *anon_inode_mnt __read_mostly; static struct inode *anon_inode_inode; -static const struct file_operations anon_inode_fops; /* * anon_inodefs_dname() is called from d_path(). @@ -39,51 +38,6 @@ static const struct dentry_operations anon_inodefs_dentry_operations = { .d_dname = anon_inodefs_dname, }; -/* - * nop .set_page_dirty method so that people can use .page_mkwrite on - * anon inodes. - */ -static int anon_set_page_dirty(struct page *page) -{ - return 0; -}; - -static const struct address_space_operations anon_aops = { - .set_page_dirty = anon_set_page_dirty, -}; - -/* - * A single inode exists for all anon_inode files. Contrary to pipes, - * anon_inode inodes have no associated per-instance data, so we need - * only allocate one of them. - */ -static struct inode *anon_inode_mkinode(struct super_block *s) -{ - struct inode *inode = new_inode_pseudo(s); - - if (!inode) - return ERR_PTR(-ENOMEM); - - inode->i_ino = get_next_ino(); - inode->i_fop = &anon_inode_fops; - - inode->i_mapping->a_ops = &anon_aops; - - /* - * Mark the inode dirty from the very beginning, - * that way it will never be moved to the dirty - * list because mark_inode_dirty() will think - * that it already _is_ on the dirty list. - */ - inode->i_state = I_DIRTY; - inode->i_mode = S_IRUSR | S_IWUSR; - inode->i_uid = current_fsuid(); - inode->i_gid = current_fsgid(); - inode->i_flags |= S_PRIVATE; - inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - return inode; -} - static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { @@ -92,7 +46,7 @@ static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type, &anon_inodefs_dentry_operations, ANON_INODE_FS_MAGIC); if (!IS_ERR(root)) { struct super_block *s = root->d_sb; - anon_inode_inode = anon_inode_mkinode(s); + anon_inode_inode = alloc_anon_inode(s); if (IS_ERR(anon_inode_inode)) { dput(root); deactivate_locked_super(s); @@ -134,7 +88,7 @@ struct file *anon_inode_getfile_private(const char *name, if (fops->owner && !try_module_get(fops->owner)) return ERR_PTR(-ENOENT); - inode = anon_inode_mkinode(anon_inode_mnt->mnt_sb); + inode = alloc_anon_inode(anon_inode_mnt->mnt_sb); if (IS_ERR(inode)) { file = ERR_PTR(-ENOMEM); goto err_module; |